translated if you can help. Thanks.
I don't see anything about the US.... or summer....
I was going to start but the handwriting (very old fashioned) missing letters (didn't show up on photo) and.... odd writing style.... a few times things that should be separate words are written together.... (old fashioned? uneducated? dialect?) defeated me.... I have a bit but I'll let some native speaker decode it more....
[beginning] Beloved sister and brother-in-law,
(I send?) to you this couple of words and (????)
[starting middle of fifth line] because one daughter is married on the reclaimed lands [western Poland]
that one is [????????] and that little one is her grandson who is 3 years old as he wrote to ...